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EP0828079A3 - Lysholm compressors - Google Patents

Lysholm compressors Download PDF

Info

Publication number
EP0828079A3
EP0828079A3 EP97306761A EP97306761A EP0828079A3 EP 0828079 A3 EP0828079 A3 EP 0828079A3 EP 97306761 A EP97306761 A EP 97306761A EP 97306761 A EP97306761 A EP 97306761A EP 0828079 A3 EP0828079 A3 EP 0828079A3
Authority
EP
European Patent Office
Prior art keywords
casing
cusps
lysholm
discharge port
suction port
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97306761A
Other languages
German (de)
French (fr)
Other versions
EP0828079A2 (en
EP0828079B1 (en
Inventor
Nobuo Takei
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IHI Corp
Original Assignee
Ishikawajima Harima Heavy Industries Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ishikawajima Harima Heavy Industries Co Ltd filed Critical Ishikawajima Harima Heavy Industries Co Ltd
Publication of EP0828079A2 publication Critical patent/EP0828079A2/en
Publication of EP0828079A3 publication Critical patent/EP0828079A3/en
Application granted granted Critical
Publication of EP0828079B1 publication Critical patent/EP0828079B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0021—Systems for the equilibration of forces acting on the pump
    • F04C29/0035—Equalization of pressure pulses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Supercharger (AREA)

Abstract

A Lysholm compressor comprises male and female rotors (1,2) which are rotatably accommodated within a casing structure comprising two part-cylindrical walls (9a,9b) which constitute a casing (3) and merge together at two cusps (10,11) which project inwardly towards one another. A suction port (4) and a discharge port (6) are provided at respective axial ends of the casing (3). A silencer chamber (13,14) is defined between at least one of the cusps (10,11) and respective associated outer wall portions (12, 15) which are situated outside the associated cusp and are integral with the casing (3). The or each silencer chamber (13,16) has a respective opening (14,17) which communicates with the suction port (4) and the discharge port (6), respectively.
EP19970306761 1996-09-09 1997-09-02 Lysholm compressors Expired - Lifetime EP0828079B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP23806596A JPH1082385A (en) 1996-09-09 1996-09-09 Casing structure of resholm type compressor
JP23806596 1996-09-09
JP238065/96 1996-09-09

Publications (3)

Publication Number Publication Date
EP0828079A2 EP0828079A2 (en) 1998-03-11
EP0828079A3 true EP0828079A3 (en) 1998-12-23
EP0828079B1 EP0828079B1 (en) 2003-03-12

Family

ID=17024641

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970306761 Expired - Lifetime EP0828079B1 (en) 1996-09-09 1997-09-02 Lysholm compressors

Country Status (3)

Country Link
EP (1) EP0828079B1 (en)
JP (1) JPH1082385A (en)
DE (1) DE69719642T2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI277694B (en) * 2002-02-28 2007-04-01 Teijin Seiki Co Ltd Vacuum exhausting apparatus
DE10359032A1 (en) * 2003-12-15 2005-07-14 Bitzer Kühlmaschinenbau Gmbh screw compressors
ITBO20040639A1 (en) * 2004-10-15 2005-01-15 Cnh Italia Spa PUMPING DEVICE FOR LIQUIDS, IN PARTICULAR FOR OIL
US7156624B2 (en) * 2004-12-09 2007-01-02 Carrier Corporation Compressor sound suppression
US8056543B2 (en) * 2009-04-24 2011-11-15 GM Global Technology Operations LLC Tuning device with combined backflow function
DE202016001950U1 (en) * 2016-03-30 2017-07-03 Leybold Gmbh vacuum pump
CN208089547U (en) 2017-09-30 2018-11-13 江森自控空调冷冻设备(无锡)有限公司 A kind of guiding valve
CN111247342B (en) * 2017-10-25 2023-03-28 开利公司 Internal exhaust passage for compressor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1258543B (en) * 1960-07-16 1968-01-11 Philipp Bormuth Dipl Ing Roots blower with pre-flow into the piston chambers
JPS59176490A (en) * 1983-03-24 1984-10-05 Toyoda Autom Loom Works Ltd Screw compressor
DE9006233U1 (en) * 1990-06-01 1991-09-26 H. Spelleken Nachf. Lufttechnik GmbH, 5600 Wuppertal Rotary piston compressor
US5312235A (en) * 1993-09-24 1994-05-17 Northern Research & Engineering Corporation Apparatus for reducing pressure pulsations
JPH07217563A (en) * 1994-01-31 1995-08-15 Ebara Corp Hollow rotor for screw fluid machinery

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1258543B (en) * 1960-07-16 1968-01-11 Philipp Bormuth Dipl Ing Roots blower with pre-flow into the piston chambers
JPS59176490A (en) * 1983-03-24 1984-10-05 Toyoda Autom Loom Works Ltd Screw compressor
DE9006233U1 (en) * 1990-06-01 1991-09-26 H. Spelleken Nachf. Lufttechnik GmbH, 5600 Wuppertal Rotary piston compressor
US5312235A (en) * 1993-09-24 1994-05-17 Northern Research & Engineering Corporation Apparatus for reducing pressure pulsations
JPH07217563A (en) * 1994-01-31 1995-08-15 Ebara Corp Hollow rotor for screw fluid machinery

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 9, no. 34 (M - 357) 14 February 1985 (1985-02-14) *
PATENT ABSTRACTS OF JAPAN vol. 95, no. 11 26 December 1995 (1995-12-26) *

Also Published As

Publication number Publication date
DE69719642T2 (en) 2003-10-16
JPH1082385A (en) 1998-03-31
EP0828079A2 (en) 1998-03-11
DE69719642D1 (en) 2003-04-17
EP0828079B1 (en) 2003-03-12

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